Air-intake for carbureters.



L. "M. FULLER. Y AIB. INTAKE FOB 'ARBURIITEI1S.` LPPLIOATIOX FILED JULY31, 1909 Patented Sept. 27,1910.

[Nl 'ENTOR v/n,

WITL'YSISS f UNITED snirns PATENT OFFICE. f f

Lawson 'MAYO FULLER, VO1@ MOLIN, ILLINOIS, As'sIoNon To VELIE moronVEHICLE COMPANY, or LIOLINnILLINO'Is, .a coIiPOnA'r'ioN oF ILLINOIS.

.'loall whmii it may concern: i Be itknown that LLAwsorl Mero FULLER, acitizen yof Ythe United States. residing at Molinc, in the county ofRock Island and State of Illinois, have invented certain new and usefulImprovements in Air-Intakes for Carbureters; and I do hereby declare thefollowing to be a full, e1ear,-`and exact description of the invention,such as will enable others skilled in the art to which it appertains touralte and use the saine.

My inventiony relates to gas engines for motor-cars and other purposes,and more particularly to nie'ans for supplying a vaporizing device, suchas a carbureter, with ai'r having a proper temperature for making aneffective mixture.

reference. to the accompanying drawings and then more particularlypointed out in the appended claims. f Referring to the. drawings: Figure`1 is a plan view, partly broken away. of an embodiinent of theinvention. Fig. 2. is a, vertical section on the line 9a-2 ot' Fig. 1,showing the valve or door closed iii full lines and open in dottedlincs.Fig. 3 is an edge view of the valve or door viewed from its pivotside.

A denotes a hot air box or cage which en circles the exhaust pipe B ofan automobile or other motor and has an outlet pipe C to l' thecarhui'eter, for the purpose of supplying te the carburetor, in coldweather, air stifliciently warmed to make an effective mixture. Neitherthe engine nor the carbureter is shown. The hott A is adapted to admitair either in contact with the. exhaust pipe so as to be heated thereby,or independently of 1n-INTAKE For. CARBURETERS.

Spelcatin of Letters Patent. Patented Sept. 27., 1910. Y Application ledJuly 31, 1909. Serial No. 510,633. i

eachA being composed of a plate having'side Y flanges extendinvtherefrom at an angle to the plate,1the side flanges f one section beingadapted when the sections are assembled, to abut those of theother-section for a or- 'i tion o their length, thus forming a ho low nmember for the passage of air. Each sec tion e, e is tOrme-d at itsinner end with a seiii'i-cylindrical extension,v the two extenv pipe,thereby forming anV air space at the sides of the pipe. ln the fornishown, the admission of air around the exhaust. pipe is secured byfoi-ming the. sectipn e, e to provide an intake mouth et at thetermination of their curved ends. This may be accomplished by ending theside flanges of the section c short of the edge of itsouter er curvedend, and forming such end to hug the exl liaust pipe, and by forming theterminating portion of the sect-ion e"- to stand out or awa y from theexhaust pipe.' n

To providev for the admission of air unaffected by artificial heat, aninlet onenin r cs controlled by a valve or `door c* is orme in one ofthe sections, thc. section e in the illustrated embodiment, forwf-ird ofthe exhaust pipe. The valve c* is provided with a pivot-extension whichmay be provided with an aperture to receive a pin e which forms thepivot for the. door and which is mounted in lugs depending from the`inner surface of the section c'. .The extension c5 is prolonged beyondthe pivot c, and at its free end, its upper and lower surfaces are'inclined oppositely as shown in detail in Figs. 2 and 3. The extensione5 is disposed vin an opening branching oft' from one side of the inletOpening e3; and 'pivoted to the section e adjacent the pivot-extensionis a 100 button c? having a beveled upper edge, and if desired, anu1.-.tanding y lug :1s-shown to provide a finger grip for turning thebutor out of contact with the exhaust pipe so l t0n. The latter isadapted to lock the door as to suppl)1 air at the prevailingratmospheric temperature. The box illustrated is coniposed of separablesections e, 1.-! 'adapted to g c* in either its opened or closedposition.

To lock the door in its closed position, the button is turned to engageand Overlie the he secured together, after being,v mounted on l upperinclined surface oi' the pivot-extenthe exhaust pipe.v bv bolts 'asshown.

The l sion. :is shown in full lines in Fig. and to sections e, e. are ofthe t'orin of haf boxes, lock the valve in its opened position, the 110button is turned to bring its beveled edge in engagementwith the underinclined surface of such extension, as shown in dotted lines in Fig. 2.In either of these positions 'the button e1 is. self-locking by reasonof -its fric'tional engagement with eitlier'tlie upper or lower inclinedsurfaces, these inclinedk surfaces serving as wedges that hold thehuttoii aga-inst accidental displacement and prevent the. door fromrattling. The door e may if desired be terminated by an alignlarlydisposed lip as shown', which, iii the open position of the door, abatsthe transverse plate of the section e.

As a convenient means for readilyfasseiiibling and positioning thesections e, e1 in' their proper relative position, one ofthe sectionsVmay be provided with lugs ftwhich project beyond the side tianges ofsuch section and overlie the side flanges of the opposite section.. Inassembling the parts the pivot pin e may be .inserted throughV anaperture e in oneof the side flanges of the section e. v 1

f, the exhaust Lsufficiently-to render additional lieatin of e the airunnecessary or undesirable,-the ooiis opened as shown in dotted lines inFig. 2; and in this position air enters from the atmosphere wi'tlioutcontacting'with the exlsiust pipe and flows tothe pipe C and thence tthe carburetor, the door in its open posi- "tion being interposedbetweenv tlie exhaust pipe and the intiowing column of air and forming apartition between the two.

Another valuable feature of this intake is the prevention of accidentalfires. It very rcquentlyha pens that the motor of an automobile wi ltire back into the carburetor and if the openinff for the air intake isexposed, thel ignited gasolene can communicate to surrounding parts ofthe car and set them on fire, causing a artial or to'tal destruction othe automobile. With the present invent on, due to the fact that the airintake opening is' tted with a tube extending clear up to the air cagewhich surrounds the lexhaust. pipe, the gasolene if ignited could in nocase cause serious damage and the chance for ignition is greatlylessened in any event bec:r use the length of the intake pipe is such asto almost certainly preclude the flame from extending so high, and,even. if it did, i't would be surrounded by armas metallic walls andmetallic surfaces in every direction. To use an ordinary hot air intakeIfor the purpose of'assurance against fires `of this kind is` notadvisable, becauseA iii summer weather, or during the heated season, itmay not be desirable to heat the air above normal temperature. By theuse' of Ymy invention all the protection against tires is obtained andthe air may be taken at normal teiiipera'ture or artificially heated asdesired.

I anit aware that nioditicaiioiis can@ be made in sonic of the detailsof my. invention and l therefore reserve the right to `suchmodifications.`

Having described iny invention what l l. A device of the characterdescribed comprising a bo.; approximately rectangular in cross-sectionat its inner end,` said end be.

ing adapted for connection to an air-s npply pipe, the box heini; formedai its outer end to embrace ahi-ated pipe and io provide air spacebetween the pipe and the walls of said box, an opening being foi-ined insaid outer end to admit air in contact with the heated pipe, one wall ofthe rectangularl poi-tion of the box being formed with au opening. and adoor hinged to the box and controlling the latter opening, the doorVwhen open adniitting air from the. atmosphere and forming :i v

said opening and adapted when .open to y form a partitionacross the boxbetween the heated pipe andthe column of air flowing to tlieair-supplypipe, and means for locking the door iii its opened or closed position.3. A device of the character described comprising a box vor 'age formedof separa- `ble sections, the sections being forii'iidat one end toconnect. to an air-supply pipe and being formed at tlieir'opposite endsto embrace the exhaust pipe of a motor, the separable sectionsat theirends embracing th'e exhaust pipe being sepaiated-t.oadniit air incontact witlisaid exhaust pipe. f-

4. A device of the character described comprising a box or cage formedof separable sections each section composed of a plate havingside-flanges exteiidiiior therefrom, the

f side flanges of one section .hinting those of the other for a portionof their lenvth, eacii sectionliaving at one end a semi-cylindricalboss, said bosses forming jointly a connectioii for ail airsupply pipeto a eaibureter,

and the opposite ends ot the eeetions beingV oppositely curved orrontfaved tn embrace 'oppositcsides ofthe exhaust pipe nl a motor. theside tianges spacing their respective of the coneaved endg bein,separated to permit the entrance of air into the box and means forsecuring the separablt set-tions together.

5. devieeof the character described compri-5in;r a box or cage formed tobe '.-on-V neeted to the air-suppl)r pipe of a carburetor and formed aimto bey mounted' on the exhaust pipe of a motor. the box being: formed toadmit air in contact with said heated pipe land the box being alsoformed with a n opening to admit air out of 4`ntaet with tbe beat'edpipeT and a door controlling the latter opening and adapted to openinwardly.

` the door when open resting on the opposite i wall of the box or cageand cuttingr oli' thcl exhaust pipe portion from the pipe leadingr tothe carburcter. v y

(t. 'A device of the ycharm-ter deseribed vcomprising a b x or cagehavin;r an air inlet opening. a door controlling said opening andpivoted to the box, the. door having an ex tension beyond its pivotalpoint. said extension having its upper and' lower faces inclined, and abutton plvotetl to the box and adapted to be turned to engage either theupperY or lower inclined face to hold the n j door either eloged oropen. plates away from the exhaust pipe to provide an :nr-space aty itssides` the extrennlw.`l

T. A device of the character described Comprising a box or cage formedot'separai ble sections each having a plate with side i flangesdepending therefrom, the sections s being formed at. their inner ends toconnect oppositel)y curved. or concaved at their outer ends to embracethe opposite surfaces of a heated pipea the Side flanges of one, sectionterminating short of the end of its curved set-tion whereby said end isadapted to hug the heat pipe, and the end of the oppositev curvedsection being spaced away from said pipe to provide an a1r1nlet,thelatter section vof the box being provided with an opening for admittingrail: out of contart with said heated pipe, a valve or door eontrollirrgrsaid opening, and lneann for sernring the separable sections together.

In teStimony whereof I atiix my signature;

in presence of two witnesses.` e v LAWSON MAY() FULLER.l Vv'itnesses: Y

t'vvnas.- S. Danrolais'r, (`n.\s. B. Roan.

40 to an air-snpplvvv pipe and tbe Sections being

